A favorite amongst minimalist backpackers around the world, the NeoAir XLite delivers more warmth and comfort per ounce than any other three-season mattress. ThermaCapture Radiant Heat technology plus Triangular Core Matrix construction gives you incredible warmth and stability with an R-Value of 3.2. Made with uniquely soft 30D Ripstop Nylon fabric in a tapered design, the NeoAir XLite is one of the most comfortable mattresses for backcountry excursions. It's also ridiculously lightweight and has an unrivaled warmth-to-weight ratio that's hard to pass up. Packing down so small that it fits into a Nalgene water bottle and coming with its own stuff sack and repair kit, you're ready to go right out of the box.